Your weight on the surface of the Earth is 500N. What will be
your weight in an airplane at the height of 60 km from the
surface of the Earth?
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Answer:
250 N
Explanation:
Value of acceleration due to gravity decreases on going below the surface of the earth. weight(w) of a body is defined as product of mass(m) and acceleration due to gravity(g) w=mg.
The value of g below the surface of earth at a distance h is given by
g
′
=g(1−
R
h
)
⇒W
′
=W(1−
R
h
)
Given, h=
2
R
,W=500N.
W
′
=500(1−
2
1
)
=
2
500
=250N.
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